EN 61481-1:2014

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Tests
6 Conformity assessment of phase comparators
  having completed the production phase
7 Modifications
Annex A (normative) - Instructions for use
Annex B (normative) - Suitable for live working; double
        triangle (IEC 60417-5216 (2002-10))
Annex C (normative) - Chronology of type tests
Annex D (normative) - Classification of defects and tests to
        be allocated
Annex E (informative) - Information and guidelines on the use
        of the limit mark and of a contact electrode extension
Annex F (informative) - Rationale for the classification of defects
Annex G (informative) - In-service care
Bibliography
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications

IEC 61481-1:2014 is applicable to portable phase comparators of capacitive type to be used on electrical systems for voltages exceeding 1 kV a.c. and frequencies of 50 Hz and/or 60 Hz. This standard is applicable to single-pole phase comparators of capacitive type operating with a memory system up to 36 kV a.c., and two-pole phase comparators of capacitive type operating with a wireless connection up to 245 kV a.c. This standard is applicable to phase comparators of capacitive type used in contact with the bare conductive parts to be compared as a complete device including its insulating element or as a separate device, adaptable to an insulating stick which, as a separate tool, is not covered by this standard. A device that is designed to provide other functions than phase comparison is a different device and is not covered by this standard. For example a device designed to be also used as a voltage detector is not covered by this standard. This first edition, together with the first edition of IEC 61481-2, cancels and replaces the first edition of IEC 61481 published in 2001, Amendment 1:2002 and Amendment 2:2004. This edition constitutes a technical revision including the following major changes:- split of the standard in two parts;- extension of the scope to include two-pole phase comparators operating with a wireless connection up to 245 kV a.c.;- review of the requirements for indication;- introduction of a requirement for a new marking "LU" for limited use;- and revision of existing annexes.